“Sulfate-free” is a big buzzword in the haircare world, but what exactly are sulfates? Is choosing a sulfate-free shampoo better for your hair and maintaining your hair color? Board-certified dermatologist Dr. Joyce Park shares some insight and research on the topic, as well as best hair practices for keeping color treated hair healthy and protected.
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00:00 Intro
01:08 What are Surfactants
02:08 Types of Surfactants
03: 27 Color Leaching
05:43 Air drying vs blow drying
07:30 Conclusion
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*My Holy Grail Products:*
Shop everything mentioned in this video here:
Pureology Hydrate Shampoo:
Pureology Hydrate Conditioner:
Pureology Hydrate Superfood Deep Treatment Mask:
Oribe Shampoo for Beautiful Color:
Oribe Conditioner for Beautiful Color:
Oribe Masque for Beautiful Color:
Amika the Kure Intense Bond Repair Hair Mask:
Living Proof Perfect Hair Day Heat Styling Spray:
Bumble & Bumble Hairdresser’s Invisible Oil Heat/uv Protective Primer:
Kirkland Signature Moisture Shampoo:
Kirkland Signature Moisture Conditioner:
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*Sources Cited In This Video:*
Quantifying hair color: paper talking about washing with 100%, 50% strength shampoos vs. water control :
Damage from SLS on hair:
1 Gavazzoni Dias MF. Hair cosmetics: an overview. Int J Trichology. 2015 Jan-Mar;7(1):2-15. doi: 10.4103/0974-7753.153450. PMID: 25878443; PMCID: PMC4387693.
2 Pires-Oliveira R, Joekes I. UV-vis spectra as an alternative to the Lowry method for quantify hair damage induced by surfactants. Colloids Surf B Biointerfaces. 2014 Nov 1;123:326-30. doi: 10.1016/j.colsurfb.2014.09.035. Epub 2014 Sep 28. PMID: 25277290.
3 Singh B, Umapathy S. Effect of SDS on human hair: Study on the molecular structure and morphology. J Biophotonics. 2011 May;4(5):315-23. doi: 10.1002/jbio.201000072. Epub 2010 Sep 2. PMID: 20815023.
Air dry vs blow dry:
Lee Y, Kim YD, Hyun HJ, Pi LQ, Jin X, Lee WS. Hair shaft damage from heat and drying time of hair dryer. Ann Dermatol. 2011 Nov;23(4):455-62. doi: 10.5021/ad.2011.23.4.455. Epub 2011 Nov 3. PMID: 22148012; PMCID: PMC3229938.
Links to my Valerie’s IG, a hair care cosmetic chemist: www.instagram.com/cosmetic_chemist
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Dr. Joyce Park is a board-certified dermatologist based in Seattle, WA, founder of Skin Refinery, a boutique virtual dermatology practice, and content creator and skincare and beauty educator.
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*DISCLAIMER: The information in this video is not intended as medical advice, diagnosis, or treatment. Always seek the advice of your physician.*
Personally the shampoo that’s worked best for me is L’Oréal Vitamino Color, which isn’t actually sulfate free and instead is anti UV and hydrophobic. It’s the only colour shampoo I’ve found genuinely protects my colour. And I’ve tried soooo many different types
This is such an interesting video, thank you!
I’m curious about dry shampoo. My hair is very thin and it gets oily after a few hours after washing or windy weather. If I use dry shampoo all the time, isn’t it damaging to my hair and scalp ? It’s chemicals after all 🤷♀️
very informative! thank you!
This was super helpful and so well-researched, thank you!